Intel ETX CD manual Special Features, Watchdog Timer, Configuration

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5 Special Features

5 Special Features

5.1Watchdog Timer

This feature is implemented in the Winbond 83627HF super I/O. You can configure the Watchdog Timer (WDT) in BIOS setup to start after a set amount of time after power-on boot. The WDT can also be controlled by the JIDA32 Library API (Refer to Appendix F: JIDA Standard). The application software should strobe the WDT to prevent its timeout. Upon timeout, the WDT resets and restarts the system. This provides a way to recover from program crashes or lockups.

Configuration

You can program the timeout period for the watchdog timer in two ranges:

➤

➤

1-second increments from 1 to 255 seconds

1-minute increments from 1 to 255 minutes

Contact Kontron Embedded Modules technical support for information on programming and operating the WDT.

Kontron User's Guide ETX CD

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Contents ETX CD Document Revision All not approved entries are markedThis page intentionally left blank Table of Contents Connector X4 IDE 1, IDE 2, Ethernet, Miscellaneous Kontron Users Guide ETX CD10.1 10.210.2.1 10.3User Information Technical Support Asia Europe North/South AmericaIntroduction ETX-CDIntroduction 2x Serial ATA Sata 1x Parallel ATA IDEETX Documentation ETX BenefitsSpecifications Functional SpecificationsSystem Memory Serial Digital Video Output Sdvo Intel 945GMPCI 32 Intel ICH7 Enhanced Intelligent Drive Electronics Eide Intel ICH7AC ’97 Audio Intel 945GM Bios Phoenix, 1MB Flash-BIOS in Firmware Hub Flash MemoryTrustes Platform Module TPM Block diagram Mechanical Specifications Electrical SpecificationsCmos Battery Power Consumption Power Consumption Windows XP SP2ETX-CD Core Duo Processor T2500 Environmental Specifications TemperatureMtbf HumiditySpecifications ETX connectors Connector LocationsGeneral Signal Description ETX connectorsConnector X1 PCI bus, USB, Audio Pin SignalPin 1-50 Power PCI USB Audio Connector X1 Signal LevelsPin Signal Description Type Termination Comment Pin Signal Description Pin 51-100 Power PCI USB AudioType Termination Comment Connector X1 Signal Description 3V Power Supply for External ComponentsPCI Bus AudioConnector X2 ISA Bus Connector X2 Signal Levels Pin 1-50 Power ISAPin 51-100 Power ISA Connector X2 Signal Description ISA Bus SlotFlat-Panel Interfaces Lvds Interface Pinout JiliParallel Port Mode Pinout Floppy Support Mode Pinout Parallel Port / Floppy InterfacesDCD1# SLCT# WGATE# DSR1# Msclk CTS1# Msdat TXD1 Kbclk Connector X3 Signal Levels Pin 1-50 Power VGA LcdtvPin 51-100 Power COM LPT Floppy KB/MS/IR Connector X3 Signal Description VGA OutputSerial Ports 1 PS/2 KeyboardParallel Port IrDAFloppy Connector X4 Subsystems Connector X4 IDE 1, IDE 2, Ethernet, MiscellaneousConnector X4 Signal Levels Pin 1-50Power IDE Ethernet Power control MiscPin Signal Description Type Connector X4 Signal Description Power ControlPower Management IDE PortsFeature Connector J11 Sdvo Connector and Flat Foil CableSdvo Output Miscellaneous CircuitsPinout Feature Connector J11 Bios RequirementsPin Pin on ETX-CD Description Reserved Special Features Watchdog TimerSpecial Features ConfigurationHeatspreader Dimensions Design ConsiderationsThermal Management Design ConsiderationsPage Important Technology Information I/O Apic vs 8259 PIC Interrupt modeThermal Monitor and Catastrophic Thermal Protection Summary Processor Performance ControlActive Cooling ETX-CD onboard Fan connector Schematics of Fan controlPassive Cooling Critical Trip PointLocation and Pinout of Fan connector J6 Pinout Kontron Users Guide ETX CDElectrical characteristics Bios SettingsVcc = Imax continuous = 68 a Imax pulsed = Acpi Suspend Modes and Resume Events Processor Clock ThrottlingPage System Resources 8259 PIC modeInterrupt Request IRQ Lines Apic mode Direct Memory Access DMA ChannelsUsed For Available Available for PCI Comment Memory Area I/O Address MapPeripheral Component Interconnect PCI Devices Inter-IC I2C BusJILI-I2C Bus Limitations ISA BusWindows LimitationsBios Operation Determining the Bios VersionSetup Guide Start Phoenix Bios Setup UtilitySelecting an Item Displaying SubmenusItem Specific Help Window General Help WindowBios Setup Menus Info ScreenDisabled Main MenuIDE Channels Submenu AutoAdvanced Advanced Chipset Control Feature bit to always return CPU ControlDefault Chipset controlIntegrated Video DvmtISA Options PCI/PNP Configuration OtherPCI/PNP ISA UMB Region Exclusion PCI/PNP ISA IRQ Resource Exclusion Cache Memory Write ProtectDevice Configuration Lan Options Super I/O Controller Options IRQ4USB ports Console Redirection Keyboard Features Submenu 30/secHardware Monitor Watchdog Settings Display Control CRT + LFPMiscellaneous Submenu Security Menu Power Menu YesCPU Thermal Control Circuit PORBoot Menu Feature Option DescpriptionFeature Description Exit MenuUpdating or Restoring Bios Cannot flash when memory managers are presentPreventing Problems When Updating or Restoring Bios Jida Information Appendix a Jida StandardAppendix a Jida Standard 12.1.1 ISA, Standard PS/2 Connectors Appendix B PC Architecture InformationBuses 12.1.2 PCI/104Ports 12.2.1 RS-232 SerialSerial ATA 12.2.3 USBKontron Users Guide ETX CD Appendix C Document Revision Appendix C Document RevisionRev. Date Author Changes